Looking for Waterbury, CT Siding and Windows? Premium Siding & Windows, LLC is a Home Improvement Company in business since 1991. We install Roofing, Siding, Windows, Doors, Seamless 5" & 6" Gutters & Gutter Guards. Our CT Lic. #603057 - We have a BBB Rating of A+. Brands we carry, Alcoa, Certainteed, Crane, GAF, Harvey, Nichiha, Owens Corning, Royal, Velux and many more. If you are in Waterbury, CT and are looking for Siding and Windows, please call 203-735-5450.